Perfume compositions produced by sol-gel methods

Details Perfume compositions produced by sol-gel methods Perfume compositions produced by sol-gel methods

1990-11-26

1991-12-24

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

512 4, 524700, 524800, 524837, 42721332, 42721334, 42840221, 42840224, 264 43, 264 47, B01D 1302

Patent

active

050753509

ABSTRACT:
Compositions having perfume substance encapsulated or clathrated within are prepared by acid hydrolysis of an aqueous mixture of perfume substance and an alkoxide selected from metal alkoxides, phosphorus alkoxides, and tetraethoxysilane, followed by base catalyzed polycondensation using as a base catalyst N,N-dimenthylbenzylamine, tributylamine, tri-N-propylamine, tri-pentylamine, tripropargylamine, N,N,N-trimethylethylenediamine, or tri-N-hexylamine.

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